Fig. 1From: Production and structural characterization of a new type of polysaccharide from nitrogen-limited Arthrospira platensis cultivated in outdoor industrial-scale open raceway pondsCultivation and harvest of A. platensis in industrial-scale open raceway ponds under nitrogen-limited conditions. The normal algae paste with dark green (c), were inoculated in the raceway pond (a) and subjected to nitrogen-limited conditions for 90 h (b), before harvesting to yield light green algal paste (d)Back to article page